Update README.md

README.md

@@ -1,3 +1,17 @@
 ---
 license: mit
 ---
+
+
+## Citation
+
+```
+@inproceedings{santos2021identification,
+  title={De-Identification of Clinical Notes Using Contextualized Language Models and a Token Classifier},
+  author={Santos, Joaquim and dos Santos, Henrique DP and Tabalipa, F{\'a}bio and Vieira, Renata},
+  booktitle={Brazilian Conference on Intelligent Systems},
+  pages={33--41},
+  year={2021},
+  organization={Springer}
+}
+```